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公开(公告)号：US07658257B2
公开(公告)日：2010-02-09
申请号：US12163077
申请日：2008-06-27
IPC分类号： B60K17/356
CPC分类号： A01D69/002 , B60K17/28 , B60K25/06 , B60Y2200/223 , Y10T74/19149
摘要： A pump system includes a housing, an input shaft, a pump shaft; a hydraulic pump body, a PTO shaft, a power transmission gear train, and a PTO clutch mechanism. The housing has a narrow gear accommodating space surrounding a region including a mesh point between the first and second transmission gears of the power transmission gear train, a PTO clutch accommodating space which surrounds the PTO clutch mechanism and which is fluidly communicated with the gear accommodating space, and a pair of first and second suction/discharge ports which communicate the internal space of the housing with an outside of the housing. The first suction/discharge port is arranged within the gear accommodating space so as to be positioned in an opposite side to the PTO clutch accommodating space with the mesh point between the first and second transmission gears interposed therebetween.
摘要翻译： 泵系统包括壳体，输入轴，泵轴; 液压泵体，PTO轴，动力传递齿轮系和PTO离合器机构。 壳体具有围绕包括动力传递齿轮系的第一和第二传动齿轮之间的网点的区域的窄齿轮容纳空间，围绕PTO离合器机构的PTO离合器容纳空间，并且与齿轮容纳空间流体连通 以及将壳体的内部空间与壳体的外部连通的一对第一和第二吸入/排出口。 第一吸入口和第二传动齿轮之间的网点位于齿轮容纳空间内，以便位于与PTO离合器容纳空间相反的一侧。
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公开(公告)号：US07520131B2
公开(公告)日：2009-04-21
申请号：US11939800
申请日：2007-11-14
IPC分类号： F16D31/02
摘要： There is provided a pump unit including a plurality of hydraulic pump bodies disposed in parallel to each other, a plurality of pump shafts respectively supporting the plurality of hydraulic pump bodies in a relatively non-rotatable manner and a pump housing accommodating the plurality of pump bodies and supporting the plurality of pump shafts in a rotatable manner around respective axis lines, wherein each of the plurality of pump shafts has at least one end extending outward from the pump housing so as to form an input end.
摘要翻译： 提供了一种泵单元，其包括彼此平行设置的多个液压泵体，分别以相对不可旋转的方式支撑多个液压泵体的多个泵轴和容纳多个泵体的泵壳体 并且围绕相应的轴线以可旋转的方式支撑所述多个泵轴，其中所述多个泵轴中的每一个具有从所述泵壳向外延伸的至少一个端部，以形成输入端。
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公开(公告)号：US07497081B2
公开(公告)日：2009-03-03
申请号：US11611580
申请日：2006-12-15
申请人： Shigenori Sakikawa
发明人： Shigenori Sakikawa
IPC分类号： F16D31/02
CPC分类号： B60K17/28 , B60K25/06 , B60Y2200/41
摘要： There is provided a hydraulic fluid supply structure including: a discharge line fluidly connected to a discharge port of a hydraulic pump body and regulated to have a first pressure value; an external hydraulic fluid extraction line for supplying the hydraulic fluid to an actuator for raising and lowering a working machine, the external hydraulic fluid extraction line being fluidly connected to the discharge line through a resistance valve; a PTO hydraulic fluid line for supplying the hydraulic fluid to a hydraulic operating type clutch mechanism for engaging or disengaging power transmission to the working machine, the PTO hydraulic line being fluidly connected to the discharge line through a throttle valve and regulated to have a second pressure value lower than the first pressure value; and a PTO switching valve interposed in the PTO hydraulic fluid line so as to turn ON/OFF the supply of the hydraulic fluid to the hydraulic clutch mechanism. The PTO switching valve is configured to block a primary side line, out of the PTO hydraulic line, positioned on the upstream side from the PTO switching valve, when the supply of hydraulic fluid to the hydraulic clutch mechanism is turned OFF.
摘要翻译： 提供了一种液压流体供给结构，包括：流体连接到液压泵体的排出口并被调节为具有第一压力值的排出管线; 用于将液压流体供应到用于升降工作机械的致动器的外部液压流体抽出管线，所述外部液压流体抽出管线通过电阻阀流体地连接到排出管线; 用于将液压流体供给到液压操作型离合器机构的PTO液压流体管线，用于接合或分离到工作机械的动力传递，PTO液压管线通过节流阀流体地连接到排出管线并被调节为具有第二压力 值低于第一压力值; 以及插入在PTO液压流体管线中的PTO切换阀，以将液压流体的供给接通/关闭到液压离合器机构。 当向液压离合器机构的液压流体的供给关闭时，PTO切换阀被构造成阻挡位于PTO切换阀的上游侧的PTO液压管线的一次侧线。
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公开(公告)号：US20080271939A1
公开(公告)日：2008-11-06
申请号：US12163077
申请日：2008-06-27
CPC分类号： A01D69/002 , B60K17/28 , B60K25/06 , B60Y2200/223 , Y10T74/19149
摘要： A pump system includes a housing, an input shaft, a pump shaft; a hydraulic pump body, a PTO shaft, a power transmission gear train, and a PTO clutch mechanism. The housing has a narrow gear accommodating space surrounding a region including a mesh point between the first and second transmission gears of the power transmission gear train, a PTO clutch accommodating space which surrounds the PTO clutch mechanism and which is fluidly communicated with the gear accommodating space, and a pair of first and second suction/discharge ports which communicate the internal space of the housing with an outside of the housing. The first suction/discharge port is arranged within the gear accommodating space so as to be positioned in an opposite side to the PTO clutch accommodating space with the mesh point between the first and second transmission gears interposed therebetween.
摘要翻译： 泵系统包括壳体，输入轴，泵轴; 液压泵体，PTO轴，动力传递齿轮系和PTO离合器机构。 壳体具有围绕包括动力传递齿轮系的第一和第二传动齿轮之间的网点的区域的窄齿轮容纳空间，围绕PTO离合器机构的PTO离合器容纳空间，并且与齿轮容纳空间流体连通 以及将壳体的内部空间与壳体的外部连通的一对第一和第二吸入/排出口。 第一吸入口和第二传动齿轮之间的网点位于齿轮容纳空间内，以便位于与PTO离合器容纳空间相反的一侧。
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公开(公告)号：US07419025B2
公开(公告)日：2008-09-02
申请号：US10990976
申请日：2004-11-18
申请人： Norihiro Ishii , Koji Irikura , Ryota Ohashi , Shigenori Sakikawa
发明人： Norihiro Ishii , Koji Irikura , Ryota Ohashi , Shigenori Sakikawa
IPC分类号： B60K17/356
CPC分类号： F16H61/456 , B60K17/105 , B60K17/20 , B60K17/303 , B60K17/356 , F16H39/14 , F16H61/4035 , F16H61/4052 , F16H61/444
摘要： A hydraulic transaxle comprises a transaxle casing for supporting left and right axles, a pair of hydraulic motors disposed in the transaxle casing so as to drive the respective left and right axles, hydraulic ports provided in the transaxle casing so as to fluidly connect the pair of hydraulic motors in parallel to a common hydraulic pump, and a system for restricting or canceling differential rotation of the pair of hydraulic motors.
摘要翻译： 液压驱动桥包括用于支撑左轴和右轴的变速驱动桥壳体，设置在变速驱动桥壳体中的一对液压马达，以驱动相应的左轴和右轴，设置在变速驱动桥壳体中的液压端口，以便将一对 与普通液压泵并联的液压马达，以及用于限制或取消一对液压马达的差速旋转的系统。
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公开(公告)号：US20080072587A1
公开(公告)日：2008-03-27
申请号：US11939800
申请日：2007-11-14
IPC分类号： F16D31/02
摘要： There is provided a pump unit including a plurality of hydraulic pump bodies disposed in parallel to each other, a plurality of pump shafts respectively supporting the plurality of hydraulic pump bodies in a relatively non-rotatable manner and a pump housing accommodating the plurality of pump bodies and supporting the plurality of pump shafts in a rotatable manner around respective axis lines, wherein each of the plurality of pump shafts has at least one end extending outward from the pump housing so as to form an input end.
摘要翻译： 提供了一种泵单元，其包括彼此平行设置的多个液压泵体，分别以相对不可旋转的方式支撑多个液压泵体的多个泵轴和容纳多个泵体的泵壳体 并且围绕相应的轴线以可旋转的方式支撑所述多个泵轴，其中所述多个泵轴中的每一个具有从所述泵壳向外延伸的至少一个端部，以形成输入端。
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公开(公告)号：US20080054717A1
公开(公告)日：2008-03-06
申请号：US11925241
申请日：2007-10-26
IPC分类号： B60T8/40
摘要： There is provided a working vehicle having first and second hydraulic pump units operatively driven by a driving source and arranged away to each other in a width direction of the vehicle. In the working vehicle, each of the first and second hydraulic pump units includes a pump body; a port block formed with an oil passage for supplying/discharging an operating fluid to/from said pump body; a pump case connected to the port block so as to define a pump body accommodating space for surrounding the pump body; and a pump shaft for rotatably driving the pump body, the pump shaft having an input end operatively connected to said driving source. A drain port for opening the pump body accommodating space outward and a charge suction port for drawing in an oil from an oil tank in order to supply a charge oil to a hydraulic circuit fluidly connecting with the corresponding hydraulic motor unit are provided respectively in first and second assemblies formed by the corresponding pump case and port block. The drain port is provided on a wall surface other than an opposing wall surface facing each other of the wall surfaces of said first and second assemblies when arranging the first and second assemblies so that the input ends of each pump shaft are directed in the same direction.
摘要翻译： 提供了一种工作车辆，其具有由驱动源可操作地驱动并且在车辆的宽度方向上彼此远离布置的第一和第二液压泵单元。 在工作车辆中，第一和第二液压泵单元中的每一个包括泵体; 形成有用于向/从所述泵体供给/排出工作流体的油路的端口块; 连接到所述端口块的泵壳，以便限定用于围绕所述泵体的泵体容纳空间; 以及用于可旋转地驱动所述泵体的泵轴，所述泵轴具有可操作地连接到所述驱动源的输入端。 分别在第一和第二位置分别设置用于将泵主体容纳空间向外打开的排出口和用于从油箱吸入油的供给吸入口，以便向与液压马达单元流体连接的液压回路供油装置 由相应的泵壳和端口块形成的第二组件。 当布置第一和第二组件时，排水口设置在不同于所述第一和第二组件的壁表面彼此面对的相对壁表面的壁表面上，使得每个泵轴的输入端指向相同的方向 。
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公开(公告)号：US07320217B2
公开(公告)日：2008-01-22
申请号：US10553099
申请日：2004-04-14
IPC分类号： F16D31/02
CPC分类号： F16H61/465 , F16H47/02 , F16H59/14 , F16H59/42 , F16H61/40 , F16H61/4035 , F16H61/4052
摘要： Disclosed is a load controller for use in a hydrostatic transmission for a work vehicle. Power supplied from an engine is branched to drive an implement system and a traveling system. The hydrostatic transmission connects, in an oil-hydraulic closed circuit, an oil-hydraulic pump driven by the engine and an oil-hydraulic motor driven by the oil-hydraulic pump. The load controller includes a bypass oil line for bypassing an oil line that has high pressure during forward movement in the oil-hydraulic closed circuit to reach an oil line that has low pressure during forward movement or an oil tank; a first opening/closing valve for opening or closing the bypass oil line; and an opening/closing valve controller that detects a load applied to the engine while traveling during working and opens the first opening/closing valve when the load exceeds a predetermined level.
摘要翻译： 公开了一种用于工作车辆的静液压传动的负载控制器。 从发动机供应的动力被分配以驱动车辆系统和行驶系统。 液压传动装置在油压闭路中连接由发动机驱动的油压泵和由油压泵驱动的油压马达。 负载控制器包括旁路油路，用于旁路油路，其在油压闭合回路中向前运动期间具有高压，以到达在向前运动期间具有低压的油管线或油箱; 用于打开或关闭旁路油路的第一打开/关闭阀; 以及打开/关闭阀控制器，其检测在工作期间行驶期间施加到发动机的负载，并且当负载超过预定水平时打开第一开/关阀。
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公开(公告)号：US20070072728A1
公开(公告)日：2007-03-29
申请号：US11605409
申请日：2006-11-29
IPC分类号： F16H37/08
CPC分类号： F16H61/448 , B60K17/105 , B60K17/28 , B60Y2200/223 , B60Y2200/41 , F16H47/02 , F16H61/40 , F16H61/4026 , F16H61/4139 , F16H61/42 , F16H61/437 , Y10T74/19084 , Y10T74/19116 , Y10T74/19219
摘要： A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supporting the charge pump body; the PTO shaft having an one end closer to the driving axle, the one end extending outwardly through the HST housing to have an outer extension positioned outside of the HST housing; and the charge pump case being designed so as to bearing-support the outer extension of the PTO shaft.
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公开(公告)号：US07143858B2
公开(公告)日：2006-12-05
申请号：US11071735
申请日：2005-03-04
IPC分类号： B60K17/28
摘要： A transmission for a working vehicle for transmitting drive power from an engine to a driving axle that includes: a flywheel including a flywheel body operatively connected with the engine and a flywheel housing for accommodating the flywheel body; a main-speed-change unit including a main-input shaft operatively connected with the engine via the flywheel body and a main-output shaft for outputting drive power to be transmitted to the driving axle; and a sub-speed-change unit including a sub-input shaft and a sub-output shaft, and disposed at a distance from the main-speed-change unit. The engine, the flywheel and the main-speed-change unit are integrally connected with each other so as to vibrate freely relative to a vehicle frame, and the main-output shaft of the main-speed-change unit is operatively coupled with the sub-input shaft of the sub-speed-change unit via a vibration-absorbing shaft coupling.
摘要翻译： 一种用于将驱动力从发动机传递到驱动轴的工作车辆的变速器，其包括：包括与所述发动机可操作地连接的飞轮体的飞轮和用于容纳所述飞轮体的飞轮壳体; 主变速单元，其包括经由飞轮体与发动机可操作地连接的主输入轴和用于输出要传递到驱动轴的驱动力的主输出轴; 以及副变速单元，其包括副输入轴和副输出轴，并且设置在离主变速单元一定距离处。 发动机，飞轮和主变速单元彼此一体地连接，以相对于车架自由地振动，主变速单元的主输出轴可操作地与副 - 通过吸振轴联轴器输入副变速单元的输入轴。
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